Capillary Action Flower Experiment Worksheet

Science experiments lesson 4: Colour-changing flower: capillary action · Set 493 · 40 questions

What you do (Water climbs thin tubes): 1. Mix food colour into a glass of water. 2. An adult trims the flower stem and stands it in the coloured water. 3. Check the petals every few hours and draw what you see. 4. Wash your hands after handling food colour.

1. 1.🛟 What should you do after handling food colour? (a) lick your fingers (b) wipe them on walls (c) rub your eyes (d) wash your hands
2. 2.💧 Which of these lets water climb up it? (a) a steel spoon (b) a glass marble (c) a rubber eraser (d) a piece of chalk
3. 3.💧 Dip a rubber eraser into coloured water. Does the water climb up it? (a) water climbs up it (b) water does not climb
4. 4.🧺 Do we need a white flower for the coloured flower experiment? (a) not needed (b) needed
5. 5.🔍 Which is the odd one out? (a) a paper towel (b) a glass marble (c) a piece of foil (d) a plastic ruler
6. 6.True or false: a mirror is needed for the coloured flower experiment. (a) False (b) True
7. 7.True or false: a flower stem lets water climb up it. (a) False (b) True
8. 8.💧 Which of these lets water climb up it? (a) a rubber eraser (b) a cotton thread (c) a glass marble (d) a plastic ruler
9. 9.💧 Which of these lets water climb up it? (a) a plastic ruler (b) a glass marble (c) a steel spoon (d) a paper towel
10. 10.⚖️ Fair test — does colour reach the petals faster with a short stem or a long stem? Which of these is kept the same? (a) the room it stands in (b) time for colour to show (c) the length of the stem
11. 11.🔍 What do you see a day after a white flower stands in blue water? (a) the stem turns to ice (b) the flower floats away (c) the water turns green (d) the petals turn bluish
12. 12.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) food colour (b) a glass of water (c) yeast (d) a few hours of waiting
13. 13.🧺 Do we need turmeric powder for the coloured flower experiment? (a) not needed (b) needed
14. 14.💧 Which of these lets water climb up it? (a) a plastic ruler (b) a rubber eraser (c) a flower stem (d) a piece of foil
15. 15.⚖️ Fair test — does colour reach the petals faster with a short stem or a long stem? True or false: the kind of flower is the one thing we change. (a) True (b) False
16. 16.True or false: turmeric powder is not needed for the coloured flower experiment. (a) True (b) False
17. 17.🧺 Which of these is not needed for the coloured flower experiment? (a) food colour (b) a balloon (c) a white flower (d) a glass of water
18. 18.⚖️ Fair test — does colour reach the petals faster with a short stem or a long stem? True or false: the amount of colour is kept the same. (a) True (b) False
19. 19.⚖️ Fair test — does colour reach the petals faster with a short stem or a long stem? True or false: time for colour to show is what we measure. (a) False (b) True
20. 20.⚖️ Fair test — does colour reach the petals faster with a short stem or a long stem? Which of these is the one thing we change? (a) the length of the stem (b) the kind of flower (c) the amount of water (d) the amount of colour
21. 21.🧺 Which of these is needed for the coloured flower experiment? (a) a battery cell (b) a magnet (c) a few hours of waiting (d) a balloon
22. 22.⚖️ Fair test — does colour reach the petals faster with a short stem or a long stem? What do we do with “the length of the stem”? (a) we keep it the same (b) we measure it (c) we change it
23. 23.💧 Which of these does not let water climb? (a) a cotton thread (b) a piece of chalk (c) a rubber eraser (d) a strip of cloth
24. 24.🔮 Predict: a stem is split in two, one half in red water and one in blue. What do the petals do? (a) they all turn green (b) they fall off at once (c) they turn two colours (d) they stay white
25. 25.⚖️ Fair test — does colour reach the petals faster with a short stem or a long stem? True or false: the kind of flower is kept the same. (a) True (b) False
26. 26.🔍 Which is the odd one out? (a) a sugar cube (b) a plastic ruler (c) a glass marble (d) a steel spoon
27. 27.True or false: a cotton thread lets water climb up it. (a) False (b) True
28. 28.⚖️ Fair test — does colour reach the petals faster with a short stem or a long stem? What do we do with “time for colour to show”? (a) we measure it (b) we keep it the same (c) we change it
29. 29.⚖️ Fair test — does colour reach the petals faster with a short stem or a long stem? What do we do with “the room it stands in”? (a) we measure it (b) we keep it the same (c) we change it
30. 30.🔮 Predict: a strip of paper towel dips into coloured water. What happens? (a) colour climbs up it (b) it sinks at once (c) nothing ever happens (d) it turns to plastic
31. 31.🛟 Who should trim the flower stem? (a) a toddler (b) anyone, without looking (c) a grown-up (d) a pet
32. 32.💧 Which of these does not let water climb? (a) a glass marble (b) a strip of cloth (c) a paper towel (d) a piece of chalk
33. 33.True or false: a cotton thread does not let water climb. (a) False (b) True
34. 34.🧺 Which of these is needed for the coloured flower experiment? (a) a balloon (b) a battery cell (c) yeast (d) a white flower
35. 35.🔍 Which is the odd one out? (a) a piece of chalk (b) a strip of cloth (c) a rubber eraser (d) a paper towel
36. 36.⚖️ Fair test — does colour reach the petals faster with a short stem or a long stem? Which of these is what we measure? (a) the amount of water (b) the amount of colour (c) time for colour to show (d) the length of the stem
37. 37.🧺 Do we need food colour for the coloured flower experiment? (a) not needed (b) needed
38. 38.💧 Dip a sugar cube into coloured water. Does the water climb up it? (a) water does not climb (b) water climbs up it
39. 39.🧺 Do we need yeast for the coloured flower experiment? (a) not needed (b) needed
40. 40.🧺 Do we need a battery cell for the coloured flower experiment? (a) not needed (b) needed

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